Well, yes. Basically the character acquired some relevance (other than being Bruce's speech giver) when she became Bruce's only hope. Basically the character was used for this and for that, being an utilitarian item was her only purpose, which is the saddest reason any character could have to exist. It was just a McGuffin-type of character.

Yes, I am aware of this. It's what happens when you have to create a character all of a sudden because you decided you can't go ahead and use another(Dent).